South Wales Police Detective Chief Inspector Ceri Hughes said: “Our thoughts are with Mark’s family who are being supported by a family liaison officer at this difficult time.

“A review of charges in relation to the two men in custody will now take place.

“I would ask any members of the community who have any information who have not yet come forward to contact South Wales Police on 101 or Crimestoppers anonymously on 0800 555 111 quoting occurrence number *271720.”